Dentist&#39;s forceps



Patented July 3, 1928.

' UNITED STATESl PATENT OFFICE..

JOHN J. OGDEN, OF MEMPHIS, TENNESSEE.

DENTISTS FORCEPS.

Application led. July 29, 1926. Serial No. 125,699.

This invention relates to improvements may open, and retain for use, any opening` in forceps especially adapted for use by between process and tooth, and dentists in the. extraction ofteeth. lt has To make forceps designed to make especial reference to the construction of the use of such beaks. beak of the forceps, and of forceps designed In carrying out these objects I make a for use with such a beak. chisel beak which is wedge-shaped in longi- In extracting carious teeth where the tudinal section, concave in cross section and 60 crown is badly broken down, the present hasaknife edge, preferably tempered so that practice in removing the tooth, is to loosen it will hold its edge.

the tooth by means of a chisel which is I further accomplish these objects by .forced between the tooth and the gum and forming a concave chisel beak on forceps between the alveolar process and the tooth, having blunt-end handles, whereby the 65 in order primarily however to spread the ends of same may be struck with a mallet alveolar process away from the tooth to give to drive the chisel points into place between space for the beak of the forceps to enter. the alveolar process and the tooth.

rlhis operation is performed first on the The manner in which this is accomplished buccal side and then on the lingua-l side will be more fully hereinafter set out in the 70 either by forcing the chisel by hand or by specification and in the drawings, in driving the chisel in with a mallet. After which,- i

loosening, the tooth is removed byY a pair of Fig. l is a side view of a pair of forceps forceps, such pair of forceps, of course, being with one chisel beak shown in longitudinal selected, Yas may most nearly conform to the section. 75 shape and size of the tooth to be removed. Fig. 2 is a plan view of the forceps. lt results however, that, While the tooth Fig. 3 is an end view looking from right may be loosened in the socket by the chisel, to left in Fig. l, and

the space opened up will immediately close Fig. 4: is a cross section on the line IV-IV unless the alveolar process be broken down, of Fig, 1. so which is only permissible with molars, or Referring now to the drawings in which back teeth7 so that ordinarily no opening the various parts are indicated by numerals,

remains into which the ends of the forceps l--l are the forcep handles having blunt may enter, and that the forceps must engage ends 2, so designed as to permit. being struck the tOOth Outside the alveolar plOCeSS WlleIG- by a hammer 0r mallet if it be s0 desired 85 by often an unsound portion is grasped 3 is the usual t-ype of pivot pin, and 4 are producing al fracture of the tooth. the beaks or jaws. Each of these jaws has A The result is accentuated by the shape 0f an innner surface 5 which is substantially the present forcep beaks, which are comstraight longitudinally and a similar outer paratively blunt and in addition are longisurface 6 which meet in a knife edge 7. 90 tudinally curved so that entrance of the This knife edge 7 as shown in Fig. 8 is Y beak point between the alveolar process and preferably concaved to conform more or the tooth root is not possible. Likewise in less to the cross section of a tooth.

removing anterior teeth where it is essential By reference to Fig. 4 it will be seen that for esthetic reasons, that the alveolar process the inner surface 5 is similarly concaved 95 be not destroyed, a chisel may only be used and that the outer surface 6 is convexcd. for loosening the gum from the tooth. In The points 7 of the beaks are preferably such case the present curved beaks often tempered or otherwise hardened so that they bruise or even pinch off a portion of the may be sharpened to a knife edge, and gum and fail to get a gra-sp on the tooth retain such edge. l even against the alveolar process, m'uch less In using the forceps the chisel-shaped within the same. beaks of the forceps are placed on the tooth 50 The objects of my invention, are, to be extracted and pushed along the tooth, (a)To make beaks for forceps which will loosening the gum, until the chisel points serve both as chisel and beak; reach the alveolar process. If the tooth is (b) To make beaks for forceps which an anterior tooth and it be possible to do so, the chisel points are simply pushed firmly into place slightly within the process, the forceps are clamped by the hand in the usual manner and the tooth withdrawn. Should it be necessary, on account of the condition of the tooth, the chisel points may be driven in between the tooth and process to loosen the tooth therefrom and the tooth then be extracted. Where molars are to be extracted the same procedure is followed except that in such case, ordinarily, the chisel points are driven in between the process and the tooth,`thoroughly loosening the tooth therefrom, and even in many cases breaking down a small part of the buccal portion of the process.

lt will be seen that by incorporating the chisel point into the beak. of the forceps it is possible to always cleanly separate the gum from the tooth thereby preifenting bruising the gum and also that it is possible to loosen the alveolar process from the tooth and to force the points of the beaks far enough within the process to enable a sound portion.

of the tooth to be grasped and the tooth root to be removed.

.It will further be seen, that the space yopened up between the process and the tooth is retained and made available to enable the beaks of the forceps to secure a better hold,'on what is ordinarily a sound portion of an otherwise badly. decayed tooth.

It will of course be understood that the drawings herewith illustrate only one of a series of forceps. which ordinarily comprise a set, and; that Various modifications may be made in size and pattern ofzthebeaks. It will therefore be understood that the drawings are illustrative only and that I do not intend to limit myself thereby except as may be hereinafter specified in the claims.

Having fullyv described my invention, whatI-claim is:- I Y l. In dental forceps, a beak terminating 1nv a member tapered along longitudinally straight lines, said member having a concave inner surface', and a convex outer surface, said surfaces terminating jointly in a knife edge at rightiangles to said longitudinal lines. i

i Levanta Q. Dental forceps having oppositely disposed beaks, each of said beaks having a knife-edge end and enlarging rearwardly from said end along substantially straight lines, the inner surfaces of said beaks diverging to a minor extent only, along straight lines from said edges.

3. Dental forceps havingl oppositely disposed beaks, each of said beaks being concavo-convex in cross section, having a knifeedged end and enlarging rearwardly from said end along substantially straight lines, the inner surfaces of said beaks diverging to a minorfextent only, along straight lines from said edges.

4t. Dental forceps, having jaws with their inner lsurfaces lying along substantially straight longitudinal lines, their end edges sharpened to a knife edge and their outer surfaces diverging from said inner surfaces along substantially straight lines, whereby beaks are formed adaptable to be inserted between a tooth and oppositely disposed portions of the alveolar process, and to grip and 'withdraw said tooth.

5. Dental forceps, having jaws with their inner surfaces concaved in cross section and lying along-substantially straight longitudinal lines, their end edges sharpened to a knife edge and their outer surfaces diverging from said inner surfaces along substantially straight lines, whereby beaks are formed adaptableto be inserted between a tooth and oppositely disposed portions of the alveolar process and to grip and withdraw said tooth. -A

6. Dental forceps,having jaws laterally converging toward their outer ends with their inner surfaces lying along substantially straight longitudinal lines, their'ends sharpened to a knife-edge and their outer surfaces diverging` from said innersurfaces along substantially straight lines, whereby beaks are formed adaptable to be inserted between a tooth and portions of the surrounding alveolar process, and-to grip and withdraw said tooth.-

In testimony of the foregoing, I affix my signature.

l JOHN VJ. UGDEN. 

